Shell optimax 100, what about the ethanol?

scud , very good question , i was also wondering but i think ferrari and other marques advise not to use ethanol , but the wise one faz fixer will chime in

 

From what I have read its only an issue above 10%, 5% shouldnt be an issue. The problem is that the point of adding ethanol is to save cost yet 100Optimax costs 2-3cents more than 98Optimax... sorta defeats the purpose.

Anyway with the oldskool N/A engine you need to tune the car to run at that high octane to get any bhp benefit.

 

i'm sure i read that shell said ferrari does not recommend use of this fuel in their cars

 

Ferrari and Maserati issued statements in the press saying that this fuel should not be used in their cars.

 

Yeah dont have much to do tonite

http://www.fcai.com.au/ethanol.php/2005/11/00000005.html

According to the government site Ferrari, Maserati and Lambo arent mentioned in the E10(which is the laws limit) but Shell Optimax 100 is E5.

http://www.shell.com/home/Framework?siteId=au-en&FC2=/au-en/html/iwgen/zzz_lhn.html&FC3=/au-en/tailored/shell_for_motorists/fuels/extreme/extreme_technical_questions.html#1 For diferences between E5 and E10.

Soo after reading all that I guess, E10 is not safe for Ferrari's but E5 could be safe but best to get something in writing from local Ferrari HQ or just stay away.

 

Neither Ferrari nor Maserati , along with Porsche and many others , do not recommend the use of Ethanol, due to it's potential effect on fuel system components. From what I understand,this is a blanket statment made in response to the widespread use of Ethanol in fuel and the use of ethanol as a fuel replacement.
I doubt whether a 5% mix is going to cause any problems, however this is just a doubt, not real knowledge.

 

errrrrrrrrr
brain must be exhausted, honey.

 

Basically, I don't think enough testing has been done on Ferrari for them to make any positive claims either way.

They're just covering their backsides by saying "use what we have tested"

If anything, it'll damage Cats. All other fuel system components will be fine.

I tried the United ULP std stuff with Ethanol mix in my Santa Fe, and it really worked well.

Scud, if you've de catted your 430, try it.

Best fuel out here for Ferrari is Elf race fuels. I use and stock the 102RON LMS, but it is $5.50 litre.

It's unleaded and works fantastic in 360 road and C and GT, and I've got track data to back it up... No ECU or any other mods are needed either.

Also, FWIW, I'm currently refreshing 3x 360 engines... one has run exclusively on Shell 98 or Elf, while 2 have run on some crap from China. The Shell/Elf engine is like new in the intake, while the other two are filthy.

 

$5.50 litre?? ****EN HELL! Awesome! Fill her up mate!

 

What makes you say that?

 

Just because it's the only bit I'm not sure about, and a bigger bang means more heat, and with std fuels you can toast a cat already. Plus, I'm not cluey enough with the chemistry of it to make any claims.

I do know that Elf 102 LMS (and probably WRF as it's is very similar), which is unleaded, works very well, even with Cats.

 

Ha ha. Speed is money... How fast can you afford to go?

 

geez....you'd have to be pretty bloody hungry to do that!

 

I guess you prefer your pu55y raw.....

 

I thought the Ethanol acted pretty much the same as the paint thinners we used to mix with av gas to up the octane, by slowing the burn, not creating extra heat.
Ethanol is more corrosive towards rubber/plastic than regular fuel, which is the only reason I know of, that manufacturers have issues with it's use.

 

i don't care...beggars can't be choosers!

 

Ummmm, why refresh a 360 engine when you can buy 2nd hand ones from wrecks for bugger all?

 

$10 EVERY LAP of Phillip Island in the N-GT. In other words, $50-70 per passenger session at the average track day.

 

errr, if you want to race them, they need to be fresh to give any chance of reliability... and have all the updates for... conrods, variators, oil pump, pump tensioner, belt tensioners, oil ways... etc etc

And of course, they can be blueprinted to optimise all tolerances.

Anyway, a re-fresh isn't as pricey as you'd imagine... if it's not blown up, it's cheaper and quicker to re-fresh than ship a wreck in.

 

I rekon we be paying that much for unleaded in 10yrs time!!

If you buy the "Latest Issue" of EVO(#87) on page 123 they have a Fuel Test article. They use Shell and BP 95 as well as Optimax(98), Ultimate(97), Tesco(99) and Sunoco GT Race Fuel which is rated 105. It does go into alot of detail but Ill just put some test results.

The test mule was a VW Golf GTI(new model). (cost is UK pounds)
Shell (95) cost 91.9p/l
max power 205bhp
max torque 234lb ft

Shell Optimax cost 95.9p/l
max power 209bhp
max torque 242lb ft

BP Ultimate cost 100.9p/l
max power 212bhp
max torque 252lb ft

Sunoco Race Fuel cost 352.5/l (in 25l cans)
max power 218bhp
max torque 248lb ft

Even tho the race fuel torque is atad down at peak it still out performs Ultimate right thru the rev range. They mention due to cost its only worth it on the track tho where tenths count

Ohh notice we pay about half in petrol pricing, their racing fuel is wat $7-8/l

 

Fairynuff, So I can get a Step 5 for the Michy for under $10k then?

 

Have you honestly seen 360M engines for under $10k anywhere...... I need some spares

err, no your Costalotto engine will be a tad more than that.... but money well spent... fresh engine would add 20K to value, so factor that in, and it's not as $$ as you think.

Now, consider this... buy your 10k road engine, send it to Costalotto too, and have it built into a spare, and the extra value of the car would pretty much pay.... and re-sale prospects would soar.

 

how much?

 

I wish, 20 litres min for each session in the 550.